package com.huanzhidadi.single.sanmu;

import java.util.HashMap;
import java.util.Map;

public class SanmuTest {
    public static void main(String[] args) {
        Map<String, Boolean> map = new HashMap<>();
        Boolean testValue = map.get("test");
        System.out.println("testValue: " + testValue);
        boolean b = map != null ? map.get("test") : false;
        //Boolean b = map != null ? map.get("test") : Boolean.FALSE;
        System.out.println(b);
    }
}
